Adjustable bridle structure based on fixed pulley structure

Abstract

The utility model relates to the technical field of tactical equipment, and discloses an adjustable bridle structure based on a fixed pulley structure, which comprises an adjusting clamp, an arc-shaped belt is fixedly arranged on the outer walls of two second fixing rods, a flexible material ring is fixedly arranged on one side, far away from a long strip, of the arc-shaped belt, and a shoulder belt is connected in the adjusting clamp in a sliding manner. According to the adjustable strap structure based on the fixed pulley structure, the loop surface of the Velcro is driven to be far away from the hook surface of the Velcro through the connecting strap, and the strap can drive the long strip to move downwards and drive the arc-shaped strap to move downwards when moving towards the two sides, so that the effect that the shoulder strap extends out of the adjusting clamp is achieved, and the effect of synchronously adjusting the straps on the two sides and the shoulder strap can be achieved; the adjustable shoulder strap has the advantages that the size of the shoulder strap can be adjusted, the adjustable shoulder strap is simple in structure and convenient to operate, convenient adjustment is achieved, and the problems that an existing structure is quite complex and complicated in adjustment process, continuous adjustment, try-on, re-adjustment and re-try-on are needed to obtain optimal wearing experience, and satisfactory adjustment effects cannot be obtained in a short time are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tactical equipment, in particular to an adjustable belt structure based on a fixed pulley structure. Background Art

[0002] Existing tactical vests, tactical waistbands, backpacks, etc. can be simplified into a functional cloth cover-belt combination structure. The functional cloth cover structure is used to realize various loading and mounting functions, and the belt structure is used to restrain the functional cloth cover on the user to prevent shaking.

[0003] In order to fit people of all sizes, the harness needs to be produced in different sizes, generally divided into three sizes: large, medium and small, with each size being 10 cm. In addition, due to the different thickness of clothing in winter and summer, the actual body contour of the user changes. For users whose body is between two sizes, the medium size is too large in summer and the small size is too small in winter. Two sets of the same type of harness of different sizes need to be purchased, which increases the logistical burden. Even if an elastic structure can be added to extend the adjustment range, the adjustment range obtained by this method is limited by the performance of the elastic material and becomes limited. In addition, the necessary rigid fixing structure of the harness will be destroyed, making the structure unstable when the harness is used. Therefore, there is currently no structure that can be adjusted over a large range to achieve a one-size-fits-all design.

[0004] The adjustment structures of existing equipment, such as the side wraps of tactical vests, belt length, backpack waist straps, etc., are all independent left and right structures, and can only be adjusted separately on the left and right sides. This can easily cause inconsistent left and right expansion and contraction during adjustment, resulting in a significant reduction in comfort and crooked wearing problems. In addition, the entire adjustment process is very complicated and requires continuous adjustment, trial fitting, re-adjustment, and re-trial fitting to obtain the best wearing experience, and it is impossible to obtain a satisfactory adjustment effect in a short time. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides an adjustable strap structure based on a fixed pulley structure to solve the problem mentioned in the above background technology that the adjustment process is very complicated and requires constant adjustment, trial fitting, readjustment, and re-trial fitting to obtain the best wearing experience, and a satisfactory adjustment effect cannot be obtained in a short time.

[0006] 4. The repairing kit for automotive dents, according to claim 1, wherein the two foot pieces are designed to be worn on the foot stand, and the two foot pieces are designed to be worn on the foot stand, and the two foot pieces are designed to be worn on the foot stand.

[0007] Preferably, a rotating shaft is rotatably arranged inside the two adjusting frames, and an annular belt is slidably connected to the outer wall of the rotating shaft.

[0008] Preferably, the outer walls of the two long strips are movably fitted with the outer walls of the two straps respectively, and the outer walls of the two long strips are movably fitted with the outer walls of the arc-shaped belts respectively.

[0009] Preferably, the outer wall of the flexible material loop is fixedly connected to the outer wall of the shoulder strap, and the flexible material loop is movably arranged around the outer walls of the two cross bars.

[0010] Preferably, the outer walls of the two Velcro hook surfaces are respectively adhered and connected to the outer walls of the two Velcro fleece surfaces.

[0011] Preferably, the outer wall of the annular belt is movably mounted with the outer walls of the two straps, and the outer wall of the annular belt is slidably connected with the inner walls of the two adjustment frames.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The adjustable strap structure based on the fixed pulley structure drives the Velcro fur surface away from the Velcro hook surface through the connecting belt. When the strap moves to both sides, it will drive the long strip to move downward, drive the curved belt to move downward, and achieve the effect of extending the shoulder strap out of the adjustment clip, so as to achieve the effect of synchronously adjusting the straps and shoulder straps on both sides. The curved belt moves upward to drive the long strip to move upward, drive the strap to move along the adjustment frame, and drive the shoulder strap to retract. After adjusting to the appropriate position, the shoulder strap and the strap can be adjusted. The size of the shoulder strap can be adjusted, and the structure is simple and the operation is convenient, so as to achieve the effect of convenient adjustment, which solves the problem that the adjustment process of the existing structure is very complicated and requires continuous adjustment, trial wearing, re-adjustment, and re-trying to obtain the best wearing experience, and a satisfactory adjustment effect cannot be obtained in a short time.

[0014] 2. The adjustable strap structure based on the fixed pulley structure can achieve the effect of synchronous movement by movably installing the annular belt and the strap together. The annular belt slides with the adjustment frame to achieve the effect of stable movement of the straps on both sides, and can achieve the effect of lateral adjustment and two-way adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a rear cross-sectional schematic diagram of the structure of the utility model;

[0017] Figure 3 This is a front view cross-sectional schematic diagram of the structure of the utility model;

[0018] Figure 4 It is a side view schematic diagram of the structure of the utility model;

[0019] Figure 5 It is a three-dimensional schematic diagram of the fixing frame and related structures of the utility model;

[0020] Figure 6 It is a schematic diagram of the fixing frame of the utility model and its related side cross-sectional view;

[0021] Figure 7 The utility model structure Figure 6 Enlarged schematic diagram at point A in the middle.

[0022] In the figure: 1. Adjustment clip; 2. Adjustment frame; 3. Strap; 4. First fixing rod; 5. Long strip; 6. Second fixing rod; 7. Arc belt; 8. Flexible material ring; 9. Shoulder strap; 10. Cross bar; 11. Velcro hook surface; 12. Connecting belt; 13. Velcro fleece surface; 14. Rotating shaft; 15. Ring belt. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1:

[0025] Please refer to Figure 1-5 ,

[0026] An adjustable strap structure based on a fixed pulley structure comprises an adjusting clamp 1, wherein two adjusting frames 2 are movably installed inside the adjusting clamp 1, and the two adjusting frames 2 are symmetrically arranged inside the adjusting clamp 1, straps 3 are slidably connected inside the two adjusting frames 2, first fixing rods 4 are fixedly inserted at the ends close to the two straps 3, strips 5 are movably sleeved on the outer walls of the two first fixing rods 4, second fixing rods 6 are rotatably connected inside the ends of the two strips 5 away from the straps 3, arcuate belts 7 are fixedly installed on the outer walls of the two second fixing rods 6, a flexible material ring 8 is fixedly installed on the side of the arcuate belt 7 away from the strips 5, a shoulder strap 9 is slidably connected inside the adjusting clamp 1, two cross bars 10 are fixedly installed inside the adjusting clamp 1, Velcro hook surfaces 11 are fixedly provided on the outer walls of the two straps 3, connecting belts 12 are fixedly provided on the outer walls of the two adjusting frames 2, and Velcro fur surfaces 13 are fixedly provided on the sides of the two connecting belts 12 close to the adjusting frames 2;

[0027] Specifically, when the positions of the strap 3 and the shoulder strap 9 need to be adjusted, the connecting belt 12 is first moved to drive the Velcro fur surface 13 away from the Velcro hook surface 11, and then the strap 3 can slide inside the adjustment frame 2. When the strap 3 moves to both sides, it will drive the long strip 5 to move downward, and the long strip 5 will drive the arcuate belt 7 to move downward. The arcuate belt 7 will drive the flexible material ring 8 to move along the position of the cross bar 10, and then drive the shoulder strap 9 to move upward, and then the shoulder strap 9 is extended out of the adjustment clip 1, so that the effect of synchronously adjusting the straps 3 and the shoulder straps 9 on both sides can be achieved;

[0028] When it is necessary to adjust the strap 3 and the shoulder strap 9 inward, the arcuate belt 7 is moved upward, the arcuate belt 7 will drive the long strip 5 to move upward, drive the strap 3 to move along the adjustment frame 2, the arcuate belt 7 will drive the flexible material ring 8 to move upward, and then drive the shoulder strap 9 to retract. After adjusting to a suitable position, the connecting belt 12 is moved, and the Velcro fur surface 13 on the connecting belt 12 is adhered to the Velcro hook surface 11, so as to achieve the effect of limiting the movement of the shoulder strap 9 and the strap 3, and to achieve the effect of adjusting the shoulder strap 9 and the strap 3, and to achieve the effect of adjusting the size of the shoulder strap 9, and the structure is simple and the operation is convenient;

[0029] In the embodiment: the outer walls of the two long strips 5 are movably fitted with the outer walls of the two straps 3, and the outer walls of the two long strips 5 are movably fitted with the outer walls of the arc-shaped belt 7;

[0030] Specifically, the strip 5 is connected with the strap 3 to achieve the effect of driving the strip 5 to move, and the strip 5 is connected with the arc-shaped belt 7 to achieve the effect of synchronously moving the strip 5 to drive the straps 3 on both sides;

[0031] In the embodiment: the outer wall of the flexible material loop 8 is fixedly connected to the outer wall of the shoulder strap 9, and the flexible material loop 8 is movably arranged around the outer walls of the two cross bars 10;

[0032] Specifically, the flexible material loop 8 is connected to the shoulder strap 9 to achieve the effect of synchronously moving the shoulder strap 9, and the flexible material loop 8 is wound around the outer wall of the crossbar 10 to achieve the effect of changing the moving position of the flexible material loop 8;

[0033] In the embodiment: the outer walls of the two Velcro hook surfaces 11 are respectively adhered and connected to the outer walls of the two Velcro fleece surfaces 13;

[0034] Specifically, the Velcro hook surface 11 and the Velcro fleece surface 13 are adhered together to achieve the effect of showing the movement of the strap 3 and fixing the position of the strap 3;

[0035] Implementation method:

[0036] If the movement speed of the shoulder straps 9 on both sides is to reach a fixed ratio with the movement speed of the strap 3, the installation position of the strip 5 needs to be determined, that is, the closer the installation position of the strip 5 is to the strap 3, the lower the movement speed of the strap 3 is. That is, the position relationship between the shoulder straps 9, the strip 5 and the strap 3 can be simplified as follows: Figure 1 As shown:

[0037] The strip 5 is a line segment BC, and the corresponding strap 3 is a line segment CD. The motion trajectory of the strip 5 on the flexible material loop 8 is a line segment AA`. The line segment CD only moves along its extension line direction to C`D`. The B of the line segment BC is on AA` and BC moves along the line segment AA` to A`C`. A circle O is made with BC as the radius and B as the center. Therefore, when BC moves, point C is always on the circle O (O`). BC is translated to A`E, which is equivalent to obtaining the motion trajectory EC` of point C on the circle O, that is, the motion range of point C on the circle is the arc EC`, that is, the chord length EC` is obtained, and CE=AA`. At this time, the adjustment range of the strap 3 is DD`, that is, CC`, which is one side of the triangle CC`E;

[0038] Assume CC`=x, A`C`=AE=r, AA`=dd as constants, ∠θ≤90°, ∠α<90°, and we can easily get the following by using the chord length formula and the triangle side length formula:

[0039] It can be seen that when AA` is closer to CD, the r value is smaller, the x value is smaller, that is, the CD movement range is smaller; accordingly, the movement speed of the belt 3 can be controlled by setting the distance between the long strip 5 and the belt 3, so that the movement speed of the shoulder strap 9 and the movement speed of the belt 3 reach a fixed ratio;

[0040] Working principle: the connecting belt 12 drives the Velcro fur surface 13 away from the Velcro hook surface 11. When the strap 3 moves to both sides, it will drive the long strip 5 to move downward, and drive the curved belt 7 to move downward, so as to achieve the effect of extending the shoulder strap 9 out of the adjustment clip 1, and can achieve the effect of synchronously adjusting the straps 3 and the shoulder straps 9 on both sides. Moving the curved belt 7 upward drives the long strip 5 to move upward, drives the strap 3 to move along the adjustment frame 2, and drives the shoulder strap 9 to retract. After adjusting to the appropriate position, the effect of adjusting the shoulder strap 9 and the strap 3 can be achieved. The size of the shoulder strap 9 can be adjusted, and the structure is simple and easy to operate. Compared with the related art, the adjustable strap structure based on the fixed pulley structure provided by the utility model has the following beneficial effects: achieving the effect of convenient adjustment, solving the problem that the adjustment process of the existing structure is very complicated and requires continuous adjustment, trial wearing, re-adjustment, and re-trying to obtain the best wearing experience, and the problem that a satisfactory adjustment effect cannot be obtained in a short time.

[0041] Embodiment 2:

[0042] Please refer to Figure 5-7 ,

[0043] The two adjustment frames 2 are internally provided with a rotating shaft 14, and the outer wall of the rotating shaft 14 is slidably connected with an annular belt 15;

[0044] Specifically, when in use, the adjustment frame 2 needs to be taken out of the adjustment clip 1, and then the two adjustment frames 2 are spliced ​​together to achieve a multifunctional use effect. As another embodiment, the shaft 14 is provided for guidance, and the annular belt 15 is provided to connect the straps 3 on both sides, so as to achieve a two-way adjustment effect;

[0045] In the embodiment: the outer wall of the annular belt 15 is movably mounted with the outer walls of the two straps 3, and the outer wall of the annular belt 15 is slidably connected with the inner walls of the two adjustment frames 2;

[0046] Specifically, the annular belt 15 and the strap 3 are movably installed together to achieve the effect of synchronous movement. The annular belt 15 slides with the adjustment frame 2 to achieve the effect of stable movement of the straps 3 on both sides, to achieve the effect of lateral adjustment, and to achieve bidirectional adjustment.

[0047] Working principle: when in use, the adjustment frame 2 needs to be taken out of the adjustment clip 1, and then the two adjustment frames 2 are spliced ​​together to achieve the effect of multi-functional use. As another embodiment, the annular belt 15 and the strap 3 are movably installed together to achieve the effect of synchronous movement. The annular belt 15 slides with the adjustment frame 2 to achieve the effect of stable movement of the straps 3 on both sides, and the effect of lateral adjustment can be achieved. First, move the connecting belt 12, and the connecting belt 12 will drive the Velcro fur surface 13 to move, and then make the Velcro fur surface 13 away from the Velcro hook surface 11, and then move the straps 3 on both sides to achieve the effect of two-way adjustment. After the adjustment is completed, the Velcro hook surface 11 and the Velcro fur surface 13 are adhered together to achieve the effect of fixing the strap 3. Compared with the related art, the adjustable strap structure based on the fixed pulley structure provided by the utility model has the following beneficial effects: the effect of two-way adjustment can be achieved.

[0048] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable strap structure based on a fixed pulley structure, comprising an adjustment clip (1), characterized in that: Two adjustment frames (2) are movably installed inside the adjustment clamp (1), and the two adjustment frames (2) are symmetrically arranged inside the adjustment clamp (1). The insides of the two adjustment frames (2) are slidably connected with a strap (3). The ends of the two straps (3) close to each other are fixedly inserted with a first fixing rod (4). The outer walls of the two first fixing rods (4) are movably sleeved with a long strip (5). The ends of the two long strips (5) away from the straps (3) are rotatably connected with a second fixing rod (6). The outer walls of the two second fixing rods (6) are An arcuate belt (7) is fixedly installed, and a flexible material ring (8) is fixedly installed on the side of the arcuate belt (7) away from the long strip (5). A shoulder strap (9) is slidably connected inside the adjustment clip (1). Two cross bars (10) are fixedly installed inside the adjustment clip (1). The outer walls of the two straps (3) are fixedly provided with Velcro hook surfaces (11). The outer walls of the two adjustment frames (2) are fixedly provided with connecting belts (12), and the sides of the two connecting belts (12) close to the adjustment frame (2) are fixedly provided with Velcro fur surfaces (13).

2. The adjustable belt structure based on a fixed pulley structure according to claim 1, characterized in that: A rotating shaft (14) is rotatably arranged inside the two adjustment frames (2), and an annular belt (15) is slidably connected to the outer wall of the rotating shaft (14).

3. The adjustable belt structure based on a fixed pulley structure according to claim 1, characterized in that: The outer walls of the two long strips (5) are movably fitted with the outer walls of the two straps (3), and the outer walls of the two long strips (5) are movably fitted with the outer wall of the arc-shaped belt (7).

4. The adjustable belt structure based on a fixed pulley structure according to claim 1, characterized in that: The outer wall of the flexible material ring (8) is fixedly connected to the outer wall of the shoulder strap (9), and the flexible material ring (8) is movably arranged around the outer walls of the two cross bars (10).

5. The adjustable belt structure based on a fixed pulley structure according to claim 1, characterized in that: The outer walls of the two Velcro hook surfaces (11) are respectively adhered and connected to the outer walls of the two Velcro fleece surfaces (13).

6. The adjustable belt structure based on a fixed pulley structure according to claim 2, characterized in that: The outer wall of the annular belt (15) is movably mounted with the outer walls of the two straps (3), and the outer wall of the annular belt (15) is slidably connected with the inner walls of the two adjustment frames (2).

Images